Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • The magnetic field due to a long straight current carrying conductor of radius R, when <img alt="r>R\: [\: r \rightarrow" src="https://entrancecorner.oncodecogs.com/gif.latex?r%3ER%5C%3A%20%5B%5

The magnetic field due to a long straight current carrying conductor of radius R, when r>R\: [\: r \rightarrow distance between the point and the axis of wire] proportional to -

Option: 1

r


Option: 2

r^{-1}


Option: 3

r^{2}


Option: 4

r^{-2}


Answers (1)

best_answer

\mathrm{ \int \bar{B} \cdot d \bar{e}=\mu_0 \int \bar{J} \cdot d s }\mathrm{ B \cdot 2 \pi r=\mu_0\left[\begin{array}{c}\text { current crossing the bounded } \\ \text { surface }]\end{array}\right. }

\mathrm{ when\: r>R, current\, \, crossing \, \, bounded\, \, surface\, \, is\, \, I, }
\mathrm{ \begin{gathered} B \cdot 2 \pi r=\mu_0 I \\ B=\frac{\mu_0}{4 \pi} \frac{2 I}{r} \\ B \alpha \frac{1}{r} \text { Ans. } \end{gathered} }

Posted by

sudhir kumar

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET UG 2026 irregularities under investigation; NTA says full cooperation being extended to agencies
anam-khan

NEET UG 2026 Tie-Breaking Rule Explained: Here’s how ranks are decided
anam-khan

NEET 2026: Odisha aspirant dies by suicide fearing failure

Latest Question